Process of manufacturing strongly-absorbent coal.



FELIX mourns,for rnauxronrou-rnnsmaiu; ann nunwrej oulonrn; or

mmunono, onmra ifr r rnocnss or manurac'ruamo sraononr ansom'mnr con:

1,027,153; 4 Rom-swing.

' Be: it known that we,- Famx Rron'rnnw'md 1 Em ire, residing,- respectivel 6 on-t e-Main andGharlot-teng 1m,- Grermany, have invented certain-newand useful Improvements in andr Relating-"t Processes offManufacturing Strongly-Ab sorbent Coal, offwhich -thekiollowing isali 10 specification.

-- ourinveneon relates it t at yp'of ess of 'Inanufacturing'fabsorbent; carbon in,

which a mixture of mineral matter-and carbonaceousimaterialis subjectedlto dr dis: 1 tillation.

" Our invention"v cinnsists mozc particularly in the use oil ashes as-Ini eral'matter in a process of the'said kind. e have found that I the partieles'of ashes have ansuitable. degree 2020f fineness for securing arvery' fine division .of the active'carbon and that the actiye car'- bondepositedbntsa'id particles of ashes dur-' ing the process,v ofdry distillation adheres v firmly to said particles. The "use of ashes as 2 "the mineral ingredient, moreover,-.ch'eapens the processof manufacturingstronglyjab sorbent'carbon and results in certain urther afien L I; I v 303.1111 theicar'ryi'ng through of the-processwe "ma proceed as follows: we intimately mix a portion of-ashes,'such as ashes ofibrowng coal, with finely-divided coal innnatural con-n; .;dition,1 so that,'for example,16 parts of'ashes; are taken to--5 partsof finely-divided coal; "This mixture: is introduced in a known man; ner-intO-a-Isu'itabIe retort or mutfle 'andhealt Q 'fcd with exclusion ofi'air-lgup,to'BOO? toBOQif *s' -centigrader Inlorder tofsecujre good resultgi 40 care must be-taken that the mecessaryjtem-i f perature is attained in a short riodlot time" portionof absorbent; carboni If the same .as

again, and if the absorbenticai bon is used up, for instance, in purifying cit-y sewage which contains organic matter, together with Specification 0! Letters npplioation filed Hovember li, 19m. Serialjlfo. 591,4fi0i a bon, mixing-Ethe ashes resulting advantages Whichwill becomej clear here-f In sewage 'or'- ,other liquids purified-by tilt.

absorbent carbon, butthe process may he ithttt the' wholeprocess of ry distillation gas ertilizer,.asahovestated. It ap "ashes which-are obtained: --pearsfrorni the foregoing that the described a by burni'n natural coal, gashes' may 'e' mg p loyed which areobtaihdbyFtheburmng of used up absorbent c'a'rbon. In-=thisway,;one. portion of absorbent carbon after being-used .upafiords the minerarmatter forumanufac '50- turing a new g r s are usedin thep'rocess of manufacturing absorbent carbon again and Patented MayZI; tenth conipounds, then the ashes; of suchau'sed up absorbent carbon becomes more and'mo're rich in phosphorus, so that fimilly jtilizihg purposes.

ashes are obtainedwhich are suitable forfer Instead of subjecting a'inixtureaofashes awithnat-ural coal to dry distillation, we may ruse am xtnre of ashes and used up absorbent carbon; especially that laden -mth organic 'n atterg such as isdeposited on the-carbori durmgthepurifying of city sewage. If'we' subject such mixture to; dry distillation in retortslor mufllesv with exclusion of' air', the 1 organic matter deposited on the' pa'rtic1es of absorbent carbon is" converted substantially. 'mtoi'active carbon and in this way utilized for" the manufacture; of absorbent carbon" for purifying newportions of sewage -"This embodimentof theiprocess mar be effected by burning acomparatively smut? bsorbent from such burning with the larger. art'oirsa id portion of used, up absorbent ca&on, and thereafter subj ectin'g', such; xni'xture: to dry distillation It s true, that ,if .suchprocess: is repeatmi. ga n andagainthe absorbent coalis gradely. laden with coarser particles contained,

; part of a portion of used 11 Seated anumber of times withoutmateriality I nninishing theaetivityofthe -carbon. in the -course of such repeated procedures the absorbent carbon becomes more 'andlmore rich in phosphorus 1 combinations as above stated. "At the'same time, in most cases,-lime compounds are iDCorporated-in' the carbon dependingon "the-quality of the sewage to bepn'rified; If such carbon after being-used up, is burned, a' residue of ashes rich: -in phosphorus and hosphorus compounds and 'lime jcom un sisobtained 'which .may he procedure resultsin a process-which is to a certain extent cyclical -,Used-up absorbent;

carbon is converted into fresh absorbent carwhen not only by regeneration, but by adding new active substance from the conversion of organic matterinto active carbon by the dry distillation. a

' Relating to therpro'duction of a phosphoric fertilizinginaterial, it may he states that it has been found that the ashes of an absorbent carbon material substantially free 1 from phosphorus, being used to purify sewage, contained jabout..2.5 phosphoric acid. 'If nowsuch'ashes were used for the production of .a new portion of absorbent carbon and if such process was repeated five times, using always the ashes. of the used up,.carbQn. as mineral addition for the manu facture of "new portions of active carbon, then the ashes of the final'por'tion of absorbent carbon after being used up. contained about-12% of phosphoric salts:

Of course ashes of used up absorbent carbon may be em loyed in combination with other finel divided mineral material such as clay an lime for the manufacture of absorbent carbon. The ashes may furthermore a: temperature below the melting point of either component of the mixture.

2. The process of manufacturing strongly absorbent carbon, which consists in sub'ect ing a finely-divided mixture substantially consistingo'fashesand of carbonaceous ma terials to dry distillation at a temperature below the melting point of either component; of the mixture. 2 I

:3. The process of manufacturing strongly absorbentcarbon, which consists in mixing ashes with used up absorbent carbon and subjecting said mixture to dry distillation.

' .bonaceous" material absorbent carbon which consists in sub ectat. The process of manufacturing strongly absorbent carbon, which consists in mixing ashes with absorbent carbon containing organic matter and subjecting said mixture to dry distillation; 5. The process of manufacturing strongly absorbent carbon, which consists in subjecting a finely-divided mixture comprising carand mineral matterwhich contains ashes jof used up absorbent carbon to dry distillation. a 6. The processof manufacturingstrongly ing a finely-divided mixture substantially consisting of. carbonaceous .material and ashes'"of used up absorbent carbon to dry distillatiom v '7. The process of manufacturing strongly absorbent carbon, which consists in subjecting a finely-divided mixture comprising used: up absorbent carbon and mineral matter which sorbent carbon to dry distillation.

8. The process of manufacturing strongly absorbent carbon, which consists in subjecting a finely'divided mixture. substantially contains ashes of used up abconsisting of used up absorbent carbon and.

of ashes of used up absorbent carbon to dry' distillation. A I

9. The process of manufacturing strongly absorbent carbon, which consists in mixing ashes of used up absorbent carbon with finely-divided carbonaceous materials and subjecting said mixture to dry distillation.

10. The process of manufacturing strongly absorbent carbon, which consists in mixing ashes of used up absorbent carbon with finely-divided used up absorbent carbon "laden with organic matter and subjecting said mixture to dry distillation. V

11. The process of manufacturing strongly absorbent carbon, which consists in mixing ashes of used up absorbent carbon with finely-divided used up absorbent carbon laden with organic matter containing combinations of phosphorus and subjecting said mixture to dry distillation.

12. In a process of manufacturing strongly absorbent carbon by subjecting a mixture of used up absorbent=carbon and of ashes of used up absorbent carbon to dry distillation, the repeated use of the same ashes in the production of the mixture to be subjected to dry distillation.

13.' In a process of manufacturing strongly absorbent carbon by subjecting a mixture of used up absorbent carbon laden with organic matter containing combinations .of phos-.

phorus and of ashes of used up absorbent carbon to dry distillation, the repeated use of the same ashes in production of the mix-f ture to' be subjected to dry distillation.

In testimony whereof, we aflix our slgnatures in presence of two witnesses.

FELIX mourns;

Witnesses:

WOLDEMAR Haurr,

HENRY HAsraa' v I LUDWIG v N ORTHLIH'; 

